after market parts for a 302? or for the mark 7? 302 after market parts are easier to come by than a mcdonalds, as far as parts specific for the mark 7, not to sure but google mark 7 or mark 7 lsc they had factory HO motors so they are better than the "average" 302, and I have seen quite a few mark 7 lsc's with decent hp and good time slips parts suck as heads intakes cams, maf's and most longtube headers interchange no prob